A Study on the Development of a Radar Data 3D Profile Technique Using the Unity 3D Engine

摘要

This study deals with the vertical profile analysis function using the Unity 3D engine based on the three-dimensional (3D) modeling of rainfall radar observation information. To develop a rainfall radar observation data 3D profile visualization technique, a 3D cumulative rainfall model enabling 3D analysis was first created. The cumulative rainfall model was converted to the grid-based rainfall distribution of real-time-created rainfall distribution data so as to superimpose the grid data, thus creating the data regarding the rainfall accumulated at points according to the time changes. In addition, to display the cumulative rainfall data in 3D, a [Z]-value data raw file, which provides 3D high values by matching the grid data according to the legend table, was separately created. The profile function designed for the visual analysis of the created 3D cumulative rainfall model was developed using the Unity 3D platform, and a visualization display tool enabling diverse analyses through the use of the 3D rendering tool was constructed. Furthermore, the 3D cumulative rainfall model, which was created to provide the proposed profile-technique-based user service, was linked with Google Open Map so as to spatially display the rainfall distribution, and by applying the profile module, a function was implemented to quantitatively analyze the sectional distribution via 3D modeling. As a result of the use of the developed 3D profile tool, it is deemed possible to conduct quantitative analysis of a 3D display.